CN110210183A - Adjusting method of combined insulator structure and combined insulator - Google Patents
Adjusting method of combined insulator structure and combined insulator Download PDFInfo
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- CN110210183A CN110210183A CN201910611379.2A CN201910611379A CN110210183A CN 110210183 A CN110210183 A CN 110210183A CN 201910611379 A CN201910611379 A CN 201910611379A CN 110210183 A CN110210183 A CN 110210183A
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- 239000012212 insulator Substances 0.000 title claims abstract description 185
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000002131 composite material Substances 0.000 claims abstract description 116
- 239000011521 glass Substances 0.000 claims abstract description 73
- 150000001875 compounds Chemical class 0.000 claims description 49
- 238000009413 insulation Methods 0.000 claims description 36
- 239000000463 material Substances 0.000 claims description 11
- 241000208340 Araliaceae Species 0.000 claims description 7
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims description 7
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 7
- 235000008434 ginseng Nutrition 0.000 claims description 7
- 229920002379 silicone rubber Polymers 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 2
- 230000005684 electric field Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 7
- 230000010287 polarization Effects 0.000 abstract description 5
- 230000007547 defect Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
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- 206010037660 Pyrexia Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229920000260 silastic Polymers 0.000 description 2
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- 239000006227 byproduct Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- G06F30/20—Design optimisation, verification or simulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/02—Suspension insulators; Strain insulators
- H01B17/04—Chains; Multiple chains
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/42—Means for obtaining improved distribution of voltage; Protection against arc discharges
- H01B17/48—Means for obtaining improved distribution of voltage; Protection against arc discharges over chains or other serially-arranged insulators
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Abstract
The invention discloses a method for adjusting a combined insulator structure and a combined insulator, wherein the method for adjusting the combined insulator structure comprises the following steps: establishing a composite insulator high-voltage end field intensity prediction model of a composite insulator, a grading ring and/or a glass insulator, wherein the composite insulator high-voltage end field intensity prediction model at least comprises a settable grading ring shielding depth parameter and/or a glass insulator number parameter; predicting a plurality of first high-voltage end field strengths according to a plurality of preset grading ring shielding depth parameters and/or a plurality of preset glass insulator number parameters; selecting a matched second high-voltage end field strength from the plurality of first high-voltage end field strengths according to the target high-voltage end field strength; and confirming a target grading ring shielding depth parameter and/or a target glass insulator number parameter according to the second high-voltage end field intensity so as to adjust the combined insulator structure. The method achieves the effects of prejudging the electric field intensity of the high-voltage end of the composite insulator and avoiding the polarization temperature rise of the composite insulator.
Description
Technical field
The present embodiments relate to the adjustment technology of combined insulation minor structure more particularly to a kind of combined insulation minor structures
Method of adjustment and composite insulator.
Background technique
Composite insulator is with light-weight, high mechanical strength, hydrophobicity performance is strong, resistance to pollution flashover voltage height, accident zero, production are handed over
The advantages such as the short, easy maintenance of ETCD estimated time of commencing discharging are at home and abroad widely applied.But composite insulator is in operation, by product quality
With the influence of running environment, in fact it could happen that urgent defect immediately exits from operation, so that the service life be caused to be greatly reduced, threatens entire electricity
Net safe operation.Wherein overheating defect occupies important proportion in composite insulator accident.For equal under high and low humidity
The insulator of fever, there are mass defects for internal interface, and moisture will be accumulated through silastic surface in interface, in electric field
Under effect, the epoxy resin in plug will be hydrolyzed, and lead to the further expansion of boundary planar defect, and eventually lead at hole and occur
Corona discharge.
High-voltage end electric field is controlled for avoiding such accident from being of great significance, heat insulation is issued for high low humidity
Son, lower electric field energy slow down the development of defect, inhibit the shelf depreciation of fault location；For what is only generated heat under high humidity conditions
Insulator, full skirt is complete, and Core mechanical intensity is reliable, still can with continuous service, but polarize fever under the influence of, high pressure
End and the temperature difference at middle part are more than 1 DEG C, no longer meet the related request of DL/T664, be forced it is out of service will cause greatly to waste,
It is therefore desirable to reduce such temperature rise, the aging of insulator especially high-voltage end silastic material can also be slowed down by furthermore controlling temperature rise
Speed.Since the polarization loss power proportional of unit volume medium in uniform field is in square of electric field, improve end field strength
It can be effectively reduced the amplitude of such temperature rise.
Summary of the invention
The present invention provides a kind of denomination of invention, to realize the effect for the electric field strength for having prejudged composite insulator high-voltage end.
In a first aspect, the embodiment of the invention also provides a kind of methods of adjustment of combined insulation minor structure, comprising:
Composite insulator high-voltage end field-strength prediction model is established, the composite insulator high-voltage end field-strength prediction model includes
The built-up pattern of composite insulator structure model and Equalized voltage ring construction model and/or glass insulation sub-structure model, it is described compound
Insulator high-voltage end field-strength prediction model includes at least the grading ring shielding depth parameter that can be set and/or glass insulator
Number parameter；
It is more according to preset multiple grading ring shielding depth parameters and/or the glass insulator number parameter prediction
A first high-voltage end field strength；
Matched second high-pressure side field strength is selected in the multiple first high-voltage end field strength according to target high-pressure end field strength；
Target grading ring shielding depth parameter and/or target glass insulator are confirmed according to the second high-pressure side field strength
Number parameter, to adjust the combined insulation minor structure.
Second aspect, the embodiment of the invention also provides a kind of composite insulators, comprising:
Composite insulator string, including at least one composite insulator string are placed on plug, at least one described compound inslation
Attached bag includes gamp and umbellule, and the material of at least one composite insulator is silicon rubber, and the umbellule is located under the gamp
Side, the composite insulator are wrapped in sheath；
Grading ring, including ring body and bracket, the ring body are located at the lower section of at least one composite insulator gamp, institute
Bracket is stated for by the plug of the fixed composite insulator string of ring body, the position of the grading ring to be described for adjusting
The shielding depth of composite insulator；
At least one glass insulator, positioned at the lower section of the grading ring, for connecting high-voltage conducting wires, packet by connector
Head and full skirt are included, the full skirt is located at the lower section on the head, and the head is connected with the plug.
The technical solution of the present embodiment, by the way that composite insulator high-voltage end field-strength prediction model is arranged, in composite insulator
High-voltage end field-strength prediction model input different composite insulator high-voltage ends grading ring depth shielding depth and concatenation glass it is exhausted
The method of edge number has achieved the effect that the electric field strength for having prejudged composite insulator high-voltage end, has avoided composite insulator
Because temperature rise it is excessively high caused by be forced it is out of service caused by greatly waste.
Detailed description of the invention
Fig. 1 is the flow chart of the method for adjustment of the combined insulation minor structure in the embodiment of the present invention one；
Fig. 2 is the flow chart of the method for adjustment of the combined insulation minor structure in the embodiment of the present invention two；
Fig. 3 be the method for adjustment of the combined insulation minor structure in the embodiment of the present invention two grading ring shielding depth parameter with
The grading ring shielding depth of the method for adjustment of combined insulation minor structure in the relational graph and the embodiment of the present invention three of first field strength
The relational graph of parameter and third field strength.
Fig. 4 be the method for adjustment of the combined insulation minor structure in the embodiment of the present invention two glass insulator number parameter with
The relational graph of 5th field strength；
Fig. 5 is the structural schematic diagram of the composite insulator in the embodiment of the present invention three.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.It is understood that
It is that specific embodiment described herein is used only for explaining the present invention, rather than the restriction to invention.Further need exist for explanation
It is that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the reality in the present invention
Example is applied, those of ordinary skill in the art's every other embodiment obtained under the premise of no creative work belongs to this
Invent the range of protection.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.It is specific that the term used in the description of the invention herein is intended merely to description
Embodiment purpose, it is not intended that in limitation the present invention.Term as used herein "and/or" includes one or more phases
Any and all combinations of the listed item of pass.
In addition, term " first ", " second " etc. can be used to describe herein various directions, movement, step or element etc.,
But these directions, movement, step or element should not be limited by these terms.These terms are only used to by first direction, movement, step
Rapid or element and another direction, movement, step or element are distinguished.For example, the case where not departing from the scope of the present invention
Under, it can be second speed difference by First Speed difference, and similarly, it is poor second speed difference can be known as First Speed
Value.First Speed difference and second speed difference both speed difference, but it is not same speed difference.Term " the
One ", " second " etc. is not understood to indicate or imply relative importance or implicitly indicates the number of indicated technical characteristic
Amount." first " is defined as a result, the feature of " second " can explicitly or implicitly include one or more of the features.
In the description of the present invention, the meaning of " plurality " is at least two, such as two, three etc., unless otherwise clearly specific limit
It is fixed.It should be noted that it can there may also be residences directly in another portion when portion is referred to as " being fixed on " another portion
In portion.When a portion is considered as that ' attach ' to another portion, it can be directly to another portion or may be same
When there are portions placed in the middle.Term as used herein "vertical", "horizontal", "left" and "right" and similar statement are only
The purpose of explanation, is not meant to be the only embodiment.
It should be mentioned that some exemplary embodiments are described as before exemplary embodiment is discussed in greater detail
The processing or method described as flow chart.Although each step is described as the processing of sequence by flow chart, many of these
Step can be implemented concurrently, concomitantly or simultaneously.In addition, the sequence of each step can be rearranged.When its operation
Processing can be terminated when completion, it is also possible to have the additional step being not included in attached drawing.
Embodiment one
Fig. 1 is a kind of flow chart of the method for adjustment for combined insulation minor structure that the embodiment of the present invention one provides, specific to wrap
Include following steps:
Step 202 establishes composite insulator high-voltage end field-strength prediction model, composite insulator high-voltage end field-strength prediction model
Built-up pattern including composite insulator structure model and grading ring model and/or glass insulation sub-structure model, compound inslation
Sub- high-voltage end field-strength prediction model includes at least the grading ring shielding depth parameter that can be set and/or glass insulator number ginseng
Number.
In the present embodiment, composite insulator high-voltage end field-strength prediction model includes: compound inslation submodel and grading ring mould
The built-up pattern of type, wherein combination is that grading ring model is connected below compound inslation submodel；Compound inslation submodel and
The built-up pattern of glass insulation submodel, wherein combination is that glass insulation submodel is connected below compound inslation submodel；
Or the built-up pattern of compound inslation submodel, grading ring model and glass insulation submodel, wherein combination is from top to bottom
Compound inslation submodel, grading ring model and glass insulation submodel are sequentially connected.In other embodiments, composite insulator is high
Pressure side field-strength prediction model further includes lead model and iron tower model.
In the present embodiment, compound inslation submodel is the composite insulator string that multiple compound inslation submodels compose in series.
In the present embodiment, composite insulator high-voltage end field-strength prediction model includes can be with preset preset parameter and can
With the adjustable parameter of setting.Wherein, preset parameter includes: composite insulator high-pressure side bulb current potential, compound inslation subparameter
The size of material, the number of composite insulator and/or composite insulator；Adjustable parameter include grading ring shielding depth parameter and/
Or glass insulator number parameter；Specifically, the grading ring shielding depth parameter area that can be set includes: 50mm-140mm；
The glass insulator number parameter that can be set includes: 1,2 and/or 3.
Illustratively, to establish the combined composite insulator high-voltage end field strength of compound inslation submodel and grading ring model
For prediction model:
A1, compound inslation submodel and grading ring model are established, links grading ring mould in the lower section of compound inslation submodel
Type is to form built-up pattern；
A2, the preset parameter that built-up pattern is set and to generate composite insulator high-voltage end field-strength prediction model, fixed ginseng
Number include: composite insulator high-pressure side bulb current potential be 449kV, composite insulator model structure height is 4450mm, it is compound absolutely
The diameter of mandrel of edge submodel is 24mm, and the jacket thickness of compound inslation submodel is 6mm, and the gamp of compound inslation submodel is straight
Diameter is 171mm, and the umbellule diameter of compound inslation submodel is 84mm, and the gamp spacing of compound inslation submodel is 79mm, is pressed
The grading ring diameter of ring model is 400mm, and the dielectric constant of the material silicon rubber of compound inslation submodel is 3.5, compound inslation
The mandrel material relative dielectric constant of submodel is 5.Composite insulator high-voltage end field-strength prediction model further includes that can be set
Grading ring shielding depth parameter and/or glass insulator number parameter, wherein the grading ring shielding depth parameter packet that can be set
It includes: 70mm, 90mm, 10mm and/or 130mm；The glass insulator number parameter that can be set includes: 1,2 and/or 3.
It is step 204, pre- according to preset multiple grading ring shielding depth parameters and/or multiple glass insulator number parameters
Survey multiple first high-voltage end field strength.
In the present embodiment, joined according to preset multiple grading ring shielding depth parameters and/or multiple glass insulator numbers
Number predicts that multiple first high-voltage end field strength specifically include: by preset multiple grading ring shielding depth parameters and/or multiple glass
Glass insulator number parameter inputs composite insulator high-voltage end field-strength prediction model to export multiple corresponding first high-voltage end fields
By force.
Illustratively, referring to fig. 2, by taking preset multiple grading ring shielding depth parameters of input as an example, input is preset
Multiple grading ring shielding depth parameters include a1, a2, a3, a4 and a5.When input grading ring shielding depth parameter be a1 when pair
Corresponding first high-voltage end field strength b1 should be exported；The corresponding output corresponding first when inputting grading ring shielding depth parameter and being a2
High-voltage end field strength b2；It is corresponding when inputting grading ring shielding depth parameter and being a3 to export corresponding first high-voltage end field strength b3；When
It inputs to correspond to when grading ring shielding depth parameter is a4 and exports corresponding first high-voltage end field strength b4；When input grading ring shielding is deep
It spends to correspond to when parameter is a5 and exports corresponding first high-voltage end field strength b5.
Step 206 selects matched second high-pressure side in multiple first high-voltage end field strength according to target high-pressure end field strength
Field strength.
In the present embodiment, matched second high pressure is selected in multiple first high-voltage end field strength according to target high-pressure end field strength
Holding field strength includes: to be selected in multiple first high-voltage end field strength lower than target high-pressure end field strength and field according to target high-pressure end field strength
The smallest second high-pressure side field strength of intensity values.
Illustratively, referring to fig. 2, in an embodiment, target high-pressure end field strength is B=4.5kV/cm, the first high-voltage end field
It by force include b1, b2, b3, b4 and b5, wherein the value of b2, b3 and b4 are less than 4.5kV/cm, and b3 is minimum, then b3 is selected as second
High-voltage end field strength.
Step 208 confirms that target grading ring shielding depth parameter and/or target glass insulate according to second high-pressure side field strength
Sub- number parameter, to adjust combined insulation minor structure.
In the present embodiment, after second high-pressure side field strength is selected, confirm that target is pressed according to second high-pressure side field strength
Ring shielding depth parameter and/or target glass insulator number parameter specifically include: pushing away second according to second high-pressure side field strength is counter
The corresponding grading ring shielding depth parameter of high-voltage end field strength and/or the corresponding glass insulator number ginseng of second high-pressure side field strength
Number；It is exhausted according to the corresponding grading ring shielding depth parameter of second high-pressure side field strength and/or the corresponding glass of second high-pressure side field strength
Edge number parameter adjusts combined insulation minor structure.
Illustratively, second high-pressure side field strength is b3, pre- when inputting in composite insulator high-voltage end field-strength prediction model
If the high-voltage end field strength that obtains when being a3 of grading ring shielding depth parameter be b3, then counter can push away grading ring shielding depth parameter
The shielding depth of grading ring is adjusted to a3 accordingly for a3.
The technical solution of the present embodiment, by the way that composite insulator high-voltage end field-strength prediction model is arranged, in composite insulator
High-voltage end field-strength prediction model input different composite insulator high-voltage ends grading ring depth shielding depth and concatenation glass it is exhausted
The method of edge number has achieved the effect that the electric field strength for having prejudged composite insulator high-voltage end, effectively to avoid compound exhausted
Edge muon polarization heating, it is thus also avoided that composite insulator because temperature rise it is excessively high caused by be forced it is out of service caused by greatly waste.
Embodiment two
Fig. 3 is a kind of flow chart of the method for adjustment of combined insulation minor structure provided by Embodiment 2 of the present invention, specific to wrap
Include following steps:
Step 402 establishes composite insulator high-voltage end field-strength prediction model, composite insulator high-voltage end field-strength prediction model
Built-up pattern including composite insulator structure model and grading ring model and/or glass insulation sub-structure model, compound inslation
Sub- high-voltage end field-strength prediction model includes at least the grading ring shielding depth parameter that can be set and/or multiple glass insulators
Number parameter.
In the present embodiment, composite insulator high-voltage end field-strength prediction model be compound inslation submodel, grading ring model and
The built-up pattern of glass insulation submodel, wherein combination is compound inslation submodel, grading ring model and glass under upper
Glass insulation submodel is sequentially connected.In other embodiments, composite insulator high-voltage end field-strength prediction model further includes wire module
Type and iron tower model.
In the present embodiment, compound inslation submodel is the composite insulator string that multiple compound inslation submodels compose in series.
In the present embodiment, composite insulator high-voltage end field-strength prediction model includes can be with preset preset parameter and can
With the adjustable parameter of setting.Wherein, preset parameter include: the material of compound inslation subparameter, composite insulator number and/or
The size of composite insulator；Adjustable parameter includes grading ring shielding depth parameter and/or glass insulator number parameter；Specifically
, the grading ring shielding depth parameter area that can be set includes: 50mm-140mm；The glass insulator number ginseng that can be set
Number includes: 1,2 and/or 3.
Illustratively, to establish the combined composite insulator high-voltage end field strength of compound inslation submodel and grading ring model
For prediction model:
A1, compound inslation submodel and grading ring model are established, links grading ring mould in the lower section of compound inslation submodel
Type is to form built-up pattern；
A2, the preset parameter that built-up pattern is set and to generate composite insulator high-voltage end field-strength prediction model, fixed ginseng
Number includes: that composite insulator model structure height is 4450mm, and the diameter of mandrel of compound inslation submodel is 24mm, compound inslation
The jacket thickness of submodel is 6mm, and the gamp diameter of compound inslation submodel is 171mm, and the umbellule of compound inslation submodel is straight
Diameter is 84mm, and the gamp spacing of compound inslation submodel is 79mm, and the grading ring diameter of grading ring model is 400mm, compound exhausted
The dielectric constant of the material silicon rubber of edge submodel is 3.5, and the mandrel material relative dielectric constant of compound inslation submodel is 5.
Composite insulator high-voltage end field-strength prediction model further includes the grading ring shielding depth parameter that can be set and/or glass insulator
Number parameter, wherein the grading ring shielding depth parameter that can be set includes: 70mm, 90mm, 10mm and/or 130mm；It can be with
The glass insulator number parameter of setting includes: 1,2 and/or 3.
Step 404, according to preset multiple multiple third high-voltage end field strength of grading ring shielding depth parameter prediction.
It is specific according to preset multiple multiple third high-voltage end field strength of grading ring shielding depth parameter prediction in the present embodiment
Include: that preset multiple grading ring shielding depth parameters input composite insulator high-voltage end field-strength prediction models are more to export
A corresponding third high-voltage end field strength.
Illustratively, referring to fig. 2, by taking preset multiple grading ring shielding depth parameters of input as an example, input is preset
Multiple grading ring shielding depth parameters include a1, a2, a3, a4 and a5.When input grading ring shielding depth parameter be a1 when pair
Corresponding third high-voltage end field strength b1 should be exported；It is corresponding when inputting grading ring shielding depth parameter and being a2 to export corresponding third
High-voltage end field strength b2；It is corresponding when inputting grading ring shielding depth parameter and being a3 to export corresponding third high-voltage end field strength b3；When
It inputs to correspond to when grading ring shielding depth parameter is a4 and exports corresponding third high-voltage end field strength b4；When input grading ring shielding is deep
It spends to correspond to when parameter is a5 and exports corresponding third high-voltage end field strength b5.
Step 406 is selected according to target high-pressure end field strength in multiple third high-voltage end field strength lower than target high-pressure end
The strong and the smallest 4th high-voltage end field strength of field intensity value.
Illustratively, referring to fig. 2, in an embodiment, target high-pressure end field strength is B=4.5kV/cm, third high-voltage end field
It by force include b1, b2, b3, b4 and b5, wherein the value of b2, b3 and b4 are less than 4.5kV/cm, and b3 is minimum, then b3 is selected as the 4th
High-voltage end field strength.
Step 408 confirms first object grading ring shielding depth parameter according to the 4th high-voltage end field strength, exhausted with adjustment combination
The shielding depth of edge grading ring.
In the present embodiment, after the 4th high-voltage end field strength is selected, confirm that target is pressed according to the 4th high-voltage end field strength
Ring shielding depth parameter specifically includes: being shielded deeply according to the anti-corresponding grading ring of the 4th high-voltage end field strength that pushes away of the 4th high-voltage end field strength
Spend parameter；Combined insulation minor structure is adjusted according to the corresponding grading ring shielding depth parameter of the 4th high-voltage end field strength.
Illustratively, the 4th high-voltage end field strength is b3, pre- when inputting in composite insulator high-voltage end field-strength prediction model
If the high-voltage end field strength that obtains when being a3 of the first grading ring shielding depth parameter be b3, then counter can push away first object grading ring
Shielding depth parameter is that the shielding depth of grading ring is adjusted to a3 accordingly by a3.
Step 410, according to the first grading ring shielding depth parameter and preset multiple glass insulator number parameter predictions
Multiple 5th high-voltage end field strength.
It is after the first grading ring shielding depth parameter determines, the input of the first shielding parameter is compound absolutely in the present embodiment
The first composite insulator high-voltage end field-strength prediction model is generated after edge high-voltage end field-strength prediction model, wherein first is compound exhausted
Edge high-voltage end field-strength prediction model includes the glass insulator number parameter that can be set.By preset multiple glass insulators
Number parameter inputs composite insulator high-voltage end field-strength prediction model to export multiple corresponding 5th high-voltage end field strength.
Illustratively, referring to fig. 4, the first grading ring shielding depth parameter is b3, and b3 is inputted composite insulator high-voltage end
The first composite insulator high-voltage end field-strength prediction model is generated after field-strength prediction model, in the first composite insulator high-voltage end field
The preset multiple glass insulator number parameters inputted in strong prediction model include c1, c2 and c3.When glass insulator number
Parameter, which is that c1 is corresponding, exports corresponding 5th high-voltage end field strength d1；When glass insulator number parameter is that the corresponding output of c2 is corresponding
5th high-voltage end field strength d2；Corresponding 5th high-voltage end field strength d3 is exported when glass insulator number parameter is that c3 is corresponding.
Step 412 is selected according to target high-pressure end field strength in multiple 5th high-voltage end field strength lower than target high-pressure end
The strong and the smallest 6th high-voltage end field strength of field strength.
In the present embodiment, matched 6th high pressure is selected in multiple 5th high-voltage end field strength according to target high-pressure end field strength
Holding field strength includes: to be selected in multiple 5th high-voltage end field strength lower than target high-pressure end field strength and field according to target high-pressure end field strength
The smallest 6th high-voltage end field strength of intensity values.
Illustratively, referring to fig. 4, target high-pressure end field strength is D, and the 5th high-voltage end field strength includes d1, d2 and d3, wherein
The value of d2 and d3 is less than D, and d2 is less than d3, then d2 is selected as the 6th high-voltage end field strength.
Step 414 confirms target glass insulator number parameter according to the 6th high-voltage end field strength, to adjust composite insulator
The number of glass insulator.
In the present embodiment, after the 6th high-voltage end field strength is selected, target glass is confirmed according to the 6th high-voltage end field strength
Insulator number parameter specifically includes: pushing away the corresponding glass insulator of the 6th high-voltage end field strength according to the 6th high-voltage end field strength is counter
Number parameter；Combined insulation minor structure is adjusted according to the corresponding glass insulator number parameter of the 6th high-voltage end field strength.
Illustratively, the 6th high-voltage end field strength is d2, when defeated in d2 the first composite insulator high-voltage end field-strength prediction model
The high-voltage end field strength that the preset glass insulator number parameter entered obtains when being c2 is d2, then counter can push away the target of grading ring
Glass insulator number parameter is that the number of glass insulator is adjusted to d2 accordingly by c2.
The technical solution of the present embodiment, by the way that composite insulator high-voltage end field-strength prediction model is arranged, in composite insulator
High-voltage end field-strength prediction model input different composite insulator high-voltage ends grading ring depth shielding depth and concatenation glass it is exhausted
The method of edge number has achieved the effect that the electric field strength for having prejudged composite insulator high-voltage end, effectively to avoid compound exhausted
Edge muon polarization heating, it is thus also avoided that composite insulator because temperature rise it is excessively high caused by be forced it is out of service caused by greatly waste.
Embodiment three
Fig. 5 is a kind of composite insulator schematic diagram provided by Embodiment 2 of the present invention, and composite insulator includes: in this implementation
Composite insulator string 1, grading ring 2 and at least one glass insulator 3.
Composite insulator string 1, including at least one composite insulator string are placed on plug 13, at least one composite insulator
Including gamp 11 and umbellule 12, the material of at least one composite insulator is silicon rubber, and umbellule 12 is located at 11 lower section of gamp, compound
Insulator is wrapped in sheath.Specifically, composite insulator further includes high-pressure side bulb 14,13 diameter of plug of composite insulator
For 24mm, composite insulator protective case is with a thickness of 6mm, and the gamp diameter of composite insulator is 171mm, and composite insulator umbellule is straight
Diameter is 84mm, and the gamp spacing between two composite insulators is 79mm, and 21 diameter of ring body of grading ring 2 is 400mm.
Grading ring 2, including ring body 21 and bracket 22, ring body 21 are located at the lower section of at least one composite insulator gamp 11,
Bracket 22 is used for the plug 13 of the fixed composite insulator string of ring body 21, and the position of grading ring 2 is for adjusting composite insulator
Shielding depth 23, specifically, grading ring 2 adjust composite insulator shielding depth be 50mm-140mm, preferably 90mm.
At least one glass insulator 3 is used to connect high-voltage conducting wires by connector positioned at the lower section of grading ring 2, including
Head 31 and full skirt 32, full skirt 32 are located at the lower section on head 31, and head is connected with plug 13.Specifically, the type of glass insulator 3
Number be U210 type.Specifically, the number of at least one glass insulator 3 is 1-3, preferably 2.
The technical solution of the present embodiment, by adding grading ring depth shielding depth and concatenation glass in composite insulator string high-voltage end
The structure of glass insulator improves the electric field strength of composite insulator high-voltage end, avoids compound inslation muon polarization from heating up, has also achieved
Composite insulator temperature rise amplitude is reduced, the effect in composite insulator service life is increased.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. a kind of method of adjustment of combined insulation minor structure characterized by comprising
Composite insulator high-voltage end field-strength prediction model is established, the composite insulator high-voltage end field-strength prediction model includes compound
The built-up pattern of insulator structure model and Equalized voltage ring construction model and/or glass insulation sub-structure model, the compound inslation
Sub- high-voltage end field-strength prediction model includes at least the grading ring shielding depth parameter that can be set and/or glass insulator number ginseng
Number；
According to preset multiple grading ring shielding depth parameters and/or the glass insulator number parameter prediction multiple
One high-voltage end field strength；
Matched second high-pressure side field strength is selected in the multiple first high-voltage end field strength according to target high-pressure end field strength；
Target grading ring shielding depth parameter and/or target glass insulator number ginseng are confirmed according to the second high-pressure side field strength
Number, to adjust the combined insulation minor structure.
2. the method for adjustment of combined insulation minor structure according to claim 1, which is characterized in that described according to target high-pressure
End field strength selects matched second high-pressure side field strength in the multiple first high-voltage end field strength and includes:
Selected in the multiple first high-voltage end field strength according to target high-pressure end field strength lower than target high-pressure end field strength and
The smallest second high-pressure side field strength of field strength.
3. the method for adjustment of combined insulation minor structure according to claim 1, which is characterized in that described according to preset more
A grading ring shielding depth parameter and/or the multiple first high-voltage end field strength packets of at least one glass insulator number parameter prediction
It includes:
According to preset multiple multiple third high-voltage end field strength of grading ring shielding depth parameter prediction；
It is described that matched second high-pressure side field strength is selected in the multiple first high-voltage end field strength according to target high-pressure end field strength
Include:
Selected in the multiple third high-voltage end field strength according to target high-pressure end field strength lower than target high-pressure end field strength and
The smallest 4th high-voltage end field strength of field strength；
It is described that target grading ring shielding depth parameter and/or target glass insulator are confirmed according to the second high-pressure side field strength
Parameter is counted, includes: to adjust the combined insulation minor structure
First object grading ring shielding depth parameter is confirmed according to the 4th high-voltage end field strength, to adjust the composite insulator
The shielding depth of grading ring.
4. the method for adjustment of combined insulation minor structure according to claim 3, which is characterized in that described according to the described 4th
High-voltage end field strength confirms the first grading ring shielding depth parameter of target grading ring, to adjust the composite insulator grading ring
After shielding depth further include:
According to the first grading ring shielding depth parameter and preset multiple 5th high pressures of multiple glass insulator number parameter predictions
Hold field strength；
Selected in the multiple 5th high-voltage end field strength according to target high-pressure end field strength lower than target high-pressure end field strength and
The smallest 6th high-voltage end field strength of field strength；
Target glass insulator number parameter is confirmed according to the 6th high-voltage end field strength, to adjust the composite insulator glass
The number of insulator.
5. the method for adjustment of combined insulation minor structure according to claim 1, which is characterized in that the grading ring shielding is deep
Spending parameter area includes: 50mm-140mm.
6. the method for adjustment of combined insulation minor structure according to claim 1, which is characterized in that the glass insulator
Number parameter includes: 1,2 and/or 3.
7. the method for adjustment of combined insulation minor structure according to claim 1, which is characterized in that the composite insulator is high
The parameter of pressure side field-strength prediction model further includes the material, multiple of composite insulator high-pressure side bulb current potential, compound inslation subparameter
Close the number of insulator and/or the size of composite insulator.
8. a kind of composite insulator characterized by comprising
Composite insulator string, including at least one composite insulator string are placed on plug, at least one described compound inslation attached bag
Gamp and umbellule are included, the material of at least one composite insulator is silicon rubber, and the umbellule is located at below the gamp, institute
Composite insulator is stated to be wrapped in sheath；
Grading ring, including ring body and bracket, the ring body are located at the lower section of at least one composite insulator gamp, the branch
Frame is used for the plug of the fixed composite insulator string of ring body, and the position of the grading ring is described compound for adjusting
The shielding depth of insulator；
At least one glass insulator, positioned at the lower section of the grading ring, for connecting high-voltage conducting wires, including head by connector
Portion and full skirt, the full skirt are located at the lower section on the head, and the head is connected with the plug.
9. composite insulator according to claim 6, which is characterized in that the composite insulator of the grading ring adjustment
Shielding depth be 50mm-140mm.
10. composite insulator according to claim 6, which is characterized in that the number of at least one glass insulator
It is 1-3.
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